From: Paul Brannan <paul@...>
Date: 2002-02-16T06:24:15+09:00
Subject: Re: SWIG/Ruby woes with g++ 3.0

On Sat, Feb 16, 2002 at 05:24:30AM +0900, Luigi Ballabio wrote:
> >   %{
> >   #define rb_define_method(klass, name, func, params) \
> >           rb_define_method(klass, name, (VALUE(*)(...))(func), params)
> >   %}
> 
> Hmm, I don't think it would work. The above is just the VALUEFUNC 
> macro made explicit---which is what the wrappers do already. The 
> problem is that the declarations in intern.h should be changed.

Oh, right, my mistake.  That should read:

   %{
   #define rb_define_method(klass, name, func, params) \
           rb_define_method(klass, name, (VALUE(*)())(func), params)
   %}

Or, if you want to be compatible with Ruby 1.7, then:

   %{
   #if RUBY_VERSION < 170
   #  define rb_define_method(klass, name, func, params) \
             rb_define_method(klass, name, (VALUE(*)())(func), params)
   #endif
   %}

Yes, intern.h should be changed, but since that isn't an option for
older versions, the workaround is a necessary evil.

Paul